diff --git a/frontend/src/store/modules/global.ts b/frontend/src/store/modules/global.ts
index 76b65d7f2..4f71d0580 100644
--- a/frontend/src/store/modules/global.ts
+++ b/frontend/src/store/modules/global.ts
@@ -71,6 +71,9 @@ const GlobalStore = defineStore({
             this.csrfToken = token;
         },
         updateLanguage(language: any) {
+            if (language === 'pt-BR') {
+                language = 'pt-br';
+            }
             this.language = language;
             localStorage.setItem('lang', language);
         },